Lock.



" Nl 755,907. PATENTED MAR. 29, 1904.

J. B. MILLER. LOCK.

TAPPLIUATION FILED DB0. 4. 190s. No MODEL. 2 SHEETS-SHEET 1.

W/TNESSES. I /NYENT I Ami/@Sr @m m l WM M Anon/"E ys,

No. 755,907; PATBNTED MAR. 29, 1904.

J. B. MILLER. LOCK.

AP'PLroATIoN num Imc. 4. 190s. No MODEL.

2 SHEETS-SHEET 2.

Wl TNESSES.'

Y Patented March 29, 1904.

PATENT OEEICE.

JAMES B. MILLER, OF KENT, OHIO.

Loox.

SPECIFICATION forming part of Letters Patent No. 755,90*?, dated March 29, 1904.A

Application 'lled December 4, 19703. Serial No. 183,815. (No model.) I I To all whom it muy concern.-

Beit known that I, JAMES B. MILLER, a citizen of the United States of America, residing at Kent, in the county of Portage and State of Ohio, have invented certain new and useful Improvements in Locks; and I hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it y pertains to make and use the same. l

This invention relates to improvements in locks, and especially to the class of locks termed keyless or combination locks.

One object of my invention is to provide a self-locking combination-lock.

Another object of this invention is to provide a lock of this description which will be` strong, simple in construction, and comprise a small number of parts.

A further object of my invention is to provide a combination-lock which can be used simply as a latch, so that the handle which operates the bolt can be turned on either side of the door without working the combination, or as a latch-lock-thatis, so that the handle which operates the bolt can always be turned from the inside of the door; but the combination must be worked or set before the handle can be turned from the outside of the door.

With these objects in view my invention consists in providing a new and compact arrangement of the tumbler mechanism,.means for preventing the tumbler engaging with the bolt, and means whereby the throwing ofy the bolt will throw od the combination.

My invention further consists in the features of construction and combination of parts described in the specification, pointed out in the claims, and illustrated in the drawings.

In the accompanying drawings,Figure 1 is a View of the lock with the cover of the lockcasing removed, 'showing the arrangement of mechanism when the lock is serving as a latchlock. Fig. 2 is a section on line 2 2, Fig. 1. Fig. 3 is a similar view Vto Fig. 1, showing the .tumbler raised by the operation of the combination mechanism, so that the bolt can be operated from the outside of the door. Fig. 4 is a view showing the combination'mechanism thrown off by the operation of drawing back the bolt, so that the bolt will be locked when the door is closed. Fig. 5 shows the tumbler raised and held back by the device for holding the tumbler out of engagement with the bolt.

Again referring to the drawings, 1 represents the casing, which holds the lock mechanism. The spindles 3 and 4,whichoperate the bolt, are secured together by means of a neck portion 5, which is formed integral with the section 4 and enters a socket 6, formed in the spindle 3, and is held in the socket by means of a screw 7 so that it is free to turn. This arrangement allows one spindle to be turned, while the other spindle `remains stationary. The respective spindles are provided with the usual knobs 8 and 9. On the spindle 3,which carries the inner door-knob, is arranged a hub 10, which is provided with a square bore, so that it will turn with the said spindle 3. The hub 10 is provided with two arms 11 and 12, preferably of the samelength. On the spindle 4, which carries the outer door-knob, is mounted a hub 13, which is likewise provided with two arms 14 and 15.

The bolt 16 has a hollow shank portion 17, which is provided with arms 18 and 19, arrangedto straddle the bolt-spindles. At the end of said arms 18 and 19, at each side thereof, are formed lugs 20, 21, 22,. and 23, respectively. One end of a coil-spring 24 is arranged in the hollow shank 17, and the other end abuts against a lug 25, formed on the casing, so as to normally hold the bolt in its outer position. When the knob 8 on the inside of the door is turned, the arm 11 on the hub 10 will engage with the lug 2O or the arm 12 will .engage with the lug 21, according to the direction in which the knob is turned, and the bolt will be pulled back in the casing against theY action of the spring 24. Also when the knob 9 on the outside of the door is turned the arm 14 on the hub 13 will come in contact with the lug 22 or the arm 15 will come in contactl with the lug 23, thus drawing the bolt back in the casing against the action of the spring 24. Above the bolt is arranged the tumbler 30, which slides vertically in a guideway formed by the lugs 31, formed integral with the casing. The tumbler 30 is provided with a flange 32, in which is formed a notch IOO 33, arranged to receive the end of the arm 14 when the tumbler is in its lowest position, thereby preventing any movement of the said arm 14,and thereby preventing the outer doorknob from being turned. On the upper end of the tumbler 30 is formed a iiange 34, and between the flange 34 and the side of the oasing is arranged a coil-spring 35, so as to normally hold the tumbler in its lowest position.

Above the lock-spindle is journaled the combination-spindle 40,l which is provided on the outside of the door with a knob 41. On the combination-spinti le is mounted a combinationdisk 42, so as turn therewith. On the face of the disk 42 are arranged a series of cams or ridges 43. A lever 44 for lifting the tumbler is pivoted at one end on a lug 45 in the upper part of the casing, and the other end is arranged to come into contact with the iange 34 of the tumbler. A peg 46 is secured on the lever and extends in toward the face of the disk 42, so as to come into contact with the ridges 43. The ridges are so arranged that when the combination-disk is turned back and forth through a whole or part of a revolution a number of times, according to a predetermined plan, the .peg 46 will travel from ridge to ridge, constantly movin g farther from the center of the disk, and the free end of the lever 44 is raised, which in turn lifts the tumbler 3() against the spring 35 and away from the arm 14, so that the bolt can be operated from the outer side of the door. Around the perimeter of the combination-disk are formed notches 47, and at the side of the combinationdisk is arranged a spring 48, which is supported on vlugs 49, formed integral with the casing. One end of the spring 48 is held in contact with the perimeter of the combinationdisk, and when the combination-disk is turned the end of the spring passing over the notches 47 indicates both to the sense of hearing and touch what portion of a revolution the combination-disk has been turned through.

In the side of the casing above the bolt 16 is formed an opening 50, and within the casing a cam-faced block 51 is arranged to travel across the said opening. on the block 51, and it extends into the opening 50, by means of which the block 51 can be moved up or down. A bar 53 is slidably supported in lugs 54, formed integral with the casing. A fiat spring 56 is supported at one end between lugs 57, and at its other end it engages with the bar 53. This spring 56 serves both to hold the block 51 in position and to hold the end of the bar 53 against the camface of the block 51. The object of this arrangement is to hold the tumbler 30 out of engagement with the arm 12, so that the lock can be used simply as a latch, and to effect this result the combination is first worked, lifting the tumbler, and before the bolt is moved the lug 52 is shoved up in the opening 50, which carries up the block 51, and the block in A lug 52 is formed yturn moves in the bar 53 until the end thereof comes under the tumbler 30, locking it in its upper position.

On the arm 18 of the bolt 16 is rigidly secured a curved plate 60, which is arranged so that the free end thereof will travel across the face of the combination-disk 42 when the bolt is drawn back in the lock. In the face of the combination-disk is secured a peg 61, which is so arranged that when the combination-disk 42 has been turned so as to lift the tumbler 30 then the peg 61. will be close to and in the path of the plate 60, so that when the bolt is drawn back the plate will come into Contact with the peg 61 and cause a partial revolution of the combination-disk, thereby throwing 0H the combination the same as if the combination-spindle had been twirled by hand, and when the bolt is released the tumbler 30 will again engage the arm 12, locking the outer bolt-spindle. By this arrangement the combination is automatically thrown 0H every time the door is opened, and it is therefore impossible to go away and leave the door unlocked.

What I claim is- 1. The combination of a casing, inner and outer bolt-operating spindles, arms mounted on said spindles, a bolt mounted in said casing and extending between the arms on the respective spindles and provided with lugs on its inner end, a tumbler having one end arranged to engage with the end of the arm carried by the outer spindle, a spring arranged between the other end of said tumbler and the wall of said casing so as to normally hold the said tumbler in engagement with said arm, a lever operatively connected with said tumbler, a combination-disk for operating said lever and means for rotating said combination-disk substantially as described and for the purpose set forth.

2. The combination of a casing, inner and outer bolt-operating spindles, arms mounted on said spindles, a bolt mounted in said casing and provided with arms arranged to straddle said spindles and extending between the arms carried by the respective spindles, the arms on said bolt being provided with lugs which extend into the path of the arms carried by said spindles, a tumbler provided with a flange at one end arranged to engage with the arm on the outer spindle and a flange on its other end for forming a seat for a spring, a spring, a combination-disk and a lever arranged to be operated. by said combination-disk so as to lift the said tumbler out of engagement with said arm on the outer spindle, all arranged substantially as described and for the purpose set forth.

3. A combination-lock comprising, a casing, a bolt, means for operating said bolt, a tumbler arranged to prevent the operation of Said bolt, a lever for operating said tumbler, a combination-disk for operating said lever and an IIS ISO

arm secured to said bolt and arranged to come in Contact With said combination-disk so as to rotate the same for the purpose set forth.

4. A combination-look comprising, a casing, a bolt, inner and outer bolt-operating spindles, means for preventing the .outer spindle from being turned, a combination-disk for operating said means, and an arm secured on said bolt and arranged to come in Contact with said combination-disk and cause a rotation of said disk each time the bolt is operated, for the purpose set forth.

5. The combination of a easing, inner and outer bolt-operating spindles, arms mounted on said spindles, a bolt mounted in said easing and provided with lugs arranged to be engaged by the arms on the respective spindles, a tum-v bler arranged to engage with the arm on the outer spindle, a lever arranged to operate said tumbler, a Combination-disk arranged to operate said lever, a earn-faced block arranged in said easing and provided With a lug which projects through an opening in said easing, a bar slidably supported in said casing and having one end abutting against the cam-face of said block and having its other end arranged to extend under the said tumbler When in its operative position and a spring arranged to hold the end of said bar against the cam-face of said block.

In testimony whereof I sign the foregoing specilioation in the presence of tWo Witnesses.

JAMES B. MILLER. Witnesses:

VICTOR C. LYNCH, GERTRUDE HAYES. 

